# File lib/fileutils.rb, line 1076
1076:     def fu_blksize(st)
1077:       s = st.blksize
1078:       return nil unless s
1079:       return nil if s == 0
1080:       s
1081:     end

      # File lib/fileutils.rb, line 1083
1083:     def fu_default_blksize
1084:       1024
1085:     end

      # File lib/fileutils.rb, line 1067
1067:     def fu_stream_blksize(*streams)
1068:       streams.each do |s|
1069:         next unless s.respond_to?(:stat)
1070:         size = fu_blksize(s.stat)
1071:         return size if size
1072:       end
1073:       fu_default_blksize()
1074:     end

      # File lib/fileutils.rb, line 1056
1056:     def fu_windows?
1057:       /mswin|mingw|bccwin|wince|emx/ =~ RUBY_PLATFORM
1058:     end